La familia - the family
padre: father
madre: mother
hijo: son
hija: daughter
hermano: brother
hermana: sister
suegro: father-in-law
suegra: mother-in-law
cuñado: brother-in-law
cuñada: sister-in-law
esposo, marido: husband
esposa, mujer: wife
abuelo: grandfather
abuela: grandmother
nieto: grandson
nieta: granddaughter
bisabuelo: great-grandfather
bisabuela: great-grandmother
bisnieto: great-grandson
bisnieta: great-granddaughter
tatarabuelo: great-great-grandfather
tatarabuela: great-great-grandmother
tataranieto: great-great-grandson
tataranieta: great-great-granddaughter
tío: uncle
tía: aunt
tío abuelo: great-uncle
tía abuela: great-aunt
primo: cousin (male)
prima: cousin (female)
primo hermano, prima hermana: first cousin
primo segundo, prima segunda: second cousin
sobrino: nephew
sobrina: niece
padrastro: stepfather
madrastra: stepmother
hijastro: stepson
hijastra: stepdaughter
hermanastro: stepbrother
hermanastra: stepsister
concuñado: husband of one's spouse's sister
concuñada: wife of one's spouse's brother
consuegro: father-in-law of one's son or daughter
consuegra: mother-in-law of one's son or daughter
prometido, novio: fiance, boyfriend, groom
prometida, novia: fiancee, girlfriend, bride
padrino: godfather
madrina: godmother
ahijado: godson
ahijada: goddaughter